#!/usr/bin/node

const argv = process.argv,
      log  = console.log;

if(argv.length !== 3){
    log('cmd exit-code');
      process.exit(1);
}

if(isNaN(Number(argv[2]))){
    log('argv must be number');
    process.exit(2);
}

if(Number(argv[2])<0){
    log('argv must > 0');
    process.exit(3);
}

process.exit(argv[2]);
